The Network Rendering Server must be running on any computer dedicated to rendering a job remotely.
The Server communicates with the Network Manager and starts 3ds Max on that computer to render network processes. The Server has no user interface itself, but you can set various options for it from the Queue Monitor client. For example, you can specify the times of day that the Server is available to do network rendering.
You specify which PCs are to be servers in the Job Assignment dialog, a subdialog of Render Setup.